Vibration test clamp for automobile chassis

Abstract

The invention discloses a vibration test clamp for an automobile chassis, and relates to the technical field of automobile chassis processing equipment, the vibration test clamp comprises a supporting table, and four first fixing plates are arranged at the top of the supporting table. The vibration test clamp has the beneficial effects that the vibration test clamp is provided with a mounting bottom plate, the supporting table, a clamp mechanism and an auxiliary vibration mechanism; a vibration test is performed through cooperation of acting force generated by vertical reciprocating motion of the vibration mounting top plate, so that the stability of the test box in use is improved, and during use, an automobile chassis part can be placed on the surface of the test box, or the bottom of the automobile chassis is placed in a placement clamping groove to cooperate with a subsequent vibration test; the device is provided with the buffer mechanisms, improves the stability of the device in use, assists the placement and clamping of an automobile chassis through the clamp mechanism, carries out the buffer protection through the two buffer mechanisms in a vibration test, carries out the multiple damping treatment through the auxiliary vibration mechanism, achieves the protection effect of the device, and improves the reliability of the device. And the service life of the whole equipment is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of automobile chassis processing equipment, in particular to a vibration test fixture for an automobile chassis. Background Art

[0002] The vibration test fixture of the automobile chassis is used to simulate and test the vibration and shock that the vehicle may encounter during actual driving. This test is crucial to evaluate the durability, comfort and safety of the automobile.

[0003] Vibration detection is particularly important when conducting a vibration test on a car chassis. In the prior art, when conducting a vibration test, the entire device will be affected by vibrations to varying degrees. Being in a vibrating state for a long time will have an impact on each device, resulting in potential safety hazards. At the same time, the placement and clamping effects of the car chassis and its components are poor during vibration, which will also affect the actual vibration test, resulting in a longer overall test cycle, increased overall labor intensity, and an inability to meet normal use requirements. Therefore, the present invention needs to design a vibration test fixture for the car chassis to solve the above-mentioned problems. Summary of the invention

[0004] The object of the present invention is to provide a vibration test fixture for an automobile chassis to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a vibration test fixture for an automobile chassis, comprising a support platform, and further comprising: The top of the support platform is provided with four first fixing plates, the tops of the four first fixing plates are fixedly connected with first vibration rods, the tops of the four first vibration rods are installed with vibration installation top plates, the tops of the vibration installation top plates are installed with four buffer vibration blocks, the tops of the four buffer vibration blocks are installed with test platforms, and the top of the test platform is installed with a clamp mechanism; The fixture mechanism comprises a test box, a first clamp block and a third clamp block are arranged on the top of the test platform, the first clamp block and the third clamp block are symmetrically distributed, and a test box is installed between the first clamp block and the third clamp block; A mounting base plate is installed below the support platform, and two buffer mechanisms are installed between the mounting base plate and the support platform, and the two buffer mechanisms are symmetrically distributed; An auxiliary vibration mechanism is installed between the four first vibration rods, and the auxiliary vibration mechanism includes a limit clamp. Two limit clamps are installed between the four first vibration rods, and the two limit clamps are symmetrically distributed. A second vibration rod is rotatably connected between the two limit clamps. A driving motor is installed on the outer side of one of the limit clamps, and the output end of the driving motor is fixedly connected to the second vibration rod.

[0006] As a preferred embodiment of the present invention, buffer vibration blocks are installed on all four sides of the top of the vibration mounting top plate, a mounting clamp is installed on the top of the support platform and on one side of the two first vibration rods, a vibration motor is installed on the outside of the mounting clamp, and the top of the mounting clamp and both sides of the vibration motor are threadedly connected with a third positioning bolt extending into the interior of the support platform, the mounting clamp and the support platform are reinforced and installed by the two third positioning bolts, and the vibration motor is operated to drive the support platform as a whole to undergo a vibration treatment, thereby helping to improve the overall vibration test efficiency, and a buffer protection treatment is performed by four buffer vibration blocks, thereby extending the service life of the equipment.

[0007] As a preferred embodiment of the present invention, the buffer mechanism includes a mounting frame, a symmetrically distributed first connecting plate is installed between the mounting base plate and the support platform, the top of the first connecting plate is fixedly connected with equidistantly distributed buffer springs, the interior of the buffer springs is installed with damping shock absorbers, the tops of the buffer springs are fixedly connected with second connecting plates, the tops of the two second connecting plates are installed with mounting frames, the tops of the mounting frames are connected to the support platform, the bottoms of the second connecting plates are threadedly connected with fourth positioning bolts extending to the interior of the mounting frame, the mounting frame and the second connecting plate are reinforced and installed by the fourth positioning bolts, and the vibration is controlled by the cooperation of the buffer springs and the damping shock absorbers. The vibration generated during the dynamic test is buffered and shock-absorbing, which not only prolongs the service life of the equipment, but also improves the overall stability of the equipment during operation, meeting the needs of actual use. The top of the mounting frame is equipped with mounting rods that are evenly distributed and extend to the inside of the support platform. The interior of the mounting frame is fixedly connected with evenly distributed support plates. The interior of the first connecting plate and the surrounding areas of the buffer spring are threadedly connected with fifth positioning bolts that extend to the inside of the mounting base plate. The first connecting plate and the mounting base plate are reinforced and connected by four fifth positioning bolts. The mounting base plate and the support platform are supported as a whole by evenly distributed support plates installed inside the mounting frame, thereby improving the stability of the equipment during use.

[0008] As a preferred embodiment of the present invention, two second fixing plates are installed between the two first vibration rods on the same side, wherein the bottom of one of the second fixing plates is connected to the support table, and the top of the other second fixing plate is connected to the bottom of the vibration installation top plate, and a tension spring is installed between the two second fixing plates on the same side, and when the vibration installation top plate vibrates, an upward and downward force will be generated, and a secondary buffer protection treatment is performed by stretching the tension spring, and the top of the support table and the side away from the two first fixing plates are threadedly connected with a second positioning bolt, and the top of the first fixing plate and the surrounding areas of the first vibration rod are threadedly connected with a first positioning bolt extending to the inside of the support table, and the first positioning bolt is used to tighten the first fixing plate The plate and the support platform are reinforced and installed to improve the supporting effect of the support platform on the vibration installation top plate, the top of the first vibration rod is slidably connected with a sliding rod, the top of the sliding rod is connected to the bottom of the vibration installation top plate, the outer side of the second vibration rod is covered with a protrusion, and the protrusion is eccentrically connected to the second vibration rod. When the driving motor is running, it drives the second vibration rod to rotate, thereby driving the protrusion eccentrically connected to the outer side of the second vibration rod to rotate, and when the protrusion continues to rotate upward, it will gradually drive the vibration installation top plate to move upward, and the second vibration rod continues to rotate until the protrusion is reset, and a vibration test is carried out by coordinating the force generated by the up and down reciprocating motion of the vibration installation top plate. During vibration, the sliding rod slides out of the first vibration rod for three buffering protection treatments.

[0009] As a preferred embodiment of the present invention, a second clamping block is installed on one side of the test box adjacent to the first clamping block and the third clamping block, and the structures of the second clamping block and the third clamping block are both L-shaped structures. The design of the L-shaped structure better cooperates with the test box limitation, and the first clamping block is internally slidably connected with a movable slider, and the movable slider is located on the side of the first clamping block away from the test box, and the second clamping block is internally slidably connected with a second limiting latch that cooperates with the test box limitation, and the second limiting latch is located on the side of the second clamping block away from the test box. One side of the test box is limited once by the second limiting latch and the second clamping block, and the first clamping block and the movable slider are used to limit the position of the test box. A second limit is performed on one side of the test box, and the third clamp is internally slidably connected with a first limit pin used to cooperate with the test box for limiting the position, and the first limit pin is located on a side of the third clamp away from the test box, and a rotating plate is installed on the other end of the first limit pin, and a handle is installed on the bottom of the rotating plate. A placement slot is provided inside the test box, and one side of the test box is limited three times by the third clamp and the first limit pin. The handle is used for convenient manual holding, thereby improving the stability of the test box when in use. When in use, the chassis part of the car can be placed on the surface of the test box, or the bottom of the car chassis can be placed in the placement slot to cooperate with subsequent vibration tests.

[0010] As a preferred embodiment of the present invention, a control panel is installed on the outside of the support platform, and the vibration motor and the drive motor are electrically connected to the control panel. The control panel is used to control the operation of the vibration motor and the drive motor, thereby realizing unified management of power equipment.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention is provided with a mounting base plate, a support platform, a clamp mechanism and an auxiliary vibration mechanism. When in use, the external control panel is opened, and the mounting clamp plate and the support platform are reinforced and installed by two third positioning bolts. The vibration motor is operated to drive the entire support platform to undergo a vibration treatment, thereby assisting in improving the overall vibration test efficiency. A buffer protection treatment is performed by four buffer vibration blocks, thereby extending the service life of the equipment. The first fixing plate and the support platform are reinforced and installed by the first positioning bolt, thereby improving the supporting effect of the support platform on the vibration mounting top plate. When the vibration mounting top plate vibrates, an upward and downward force is generated. Through the tension spring stretching and secondary buffer protection treatment, when the driving motor is running, the second vibration rod is driven to rotate, thereby driving the eccentrically connected protrusion on the outer side of the second vibration rod to rotate. When the protrusion rotates upward continuously, it will gradually drive the vibration installation top plate to move upward, and the second vibration rod continues to rotate until the protrusion is reset. The vibration test is carried out by coordinating the force generated by the up and down reciprocating motion of the vibration installation top plate. The handle is convenient for manual gripping, thereby improving the stability of the test box when in use. When in use, the chassis part of the car can be placed on the surface of the test box, or the bottom of the chassis of the car can be placed in the placement slot to cooperate with subsequent vibration tests; 2. The present invention is provided with a buffer mechanism, and the mounting frame and the second connecting plate are reinforced and installed by the fourth positioning bolt. The vibration generated during the vibration test is buffered and shock-absorbed by the buffer spring and the damping shock absorber, which not only prolongs the service life of the equipment, but also improves the overall stability of the equipment during operation, meeting the needs of actual use. The first connecting plate and the mounting base plate are reinforced and connected by four fifth positioning bolts, and the mounting base plate and the support platform are supported as a whole by equidistantly distributed support plates installed inside the mounting frame, thereby improving the stability of the equipment during use. The placement and clamping of the automobile chassis are assisted by the clamp mechanism, and the buffer protection treatment is performed during the vibration test by two buffer mechanisms. Multiple shock absorption treatments are performed by the auxiliary vibration mechanism, thereby achieving a protective effect on the equipment and prolonging the service life of the overall equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a front view of the overall structure of the present invention; Figure 2 It is a side view of the overall structure of the present invention; Figure 3 It is a schematic diagram of the local structure of the present invention; Figure 4 It is an enlarged schematic diagram of the clamp mechanism structure of the present invention; Figure 5 It is an enlarged schematic diagram of the auxiliary vibration mechanism structure of the present invention; Figure 6 It is an enlarged schematic diagram of the buffer mechanism structure of the present invention.

[0013] In the figure: 1. Install the base plate; 2. Support platform; 21. First fixing plate; 22. First vibration rod; 23. First positioning bolt; 24. Second positioning bolt; 25. Mounting card; 26. Vibration motor; 27. Third positioning bolt; 3. Clamp mechanism; 31. Test platform; 32. Test box; 33. Placement slot; 34. First clamp block; 35. Second clamp block; 36. Third clamp block; 361. First limit pin; 362. Rotating plate; 363. Handle; 37. Second limit pin; 38. Moving slider; 4. Auxiliary vibration mechanism; 41. Vibration mounting top plate; 42. Buffer vibration block; 43. Limit clamp; 44. Drive motor; 45. Second vibration rod; 46. Second fixing plate; 47. Tension spring; 48. Bump; Buffer mechanism; 5. first connecting plate; 51. mounting frame; 52. support plate; 53. second connecting plate; 54. fourth positioning bolt; 55. mounting plug rod; 56. buffer spring; 57. damping shock absorber; 58. fifth positioning bolt. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0015] See also Figure 1-Figure 6The present invention provides a technical solution: a vibration test fixture for an automobile chassis, comprising a support platform 2, and further comprising: four first fixing plates 21 are arranged on the top of the support platform 2, the tops of the four first fixing plates 21 are all fixedly connected with first vibration rods 22, the tops of the four first vibration rods 22 are all installed with a vibration installation top plate 41, the tops of the vibration installation top plate 41 are installed with four buffer vibration blocks 42, the tops of the four buffer vibration blocks 42 are all installed with a test platform 31, and the top of the test platform 31 is installed with a fixture mechanism 3; the fixture mechanism 3 comprises a test box 32, the top of the test platform 31 is provided with a first clamping block 34 and a third clamping block 36, the first clamping block 34 and the third clamping block 36 are installed 6 are symmetrically distributed, a test box 32 is installed between the first clamping block 34 and the third clamping block 36; a mounting base plate 1 is installed below the support platform 2, two buffer mechanisms are installed between the mounting base plate 1 and the support platform 2, and the two buffer mechanisms are symmetrically distributed; an auxiliary vibration mechanism 4 is installed between the four first vibration rods 22, the auxiliary vibration mechanism 4 includes a limit clamp 43, two limit clamps 43 are installed between the four first vibration rods 22, the two limit clamps 43 are symmetrically distributed, a second vibration rod 45 is rotatably connected between the two limit clamps 43, a driving motor 44 is installed on the outer side of one of the limit clamps 43, and the output end of the driving motor 44 is fixedly connected to the second vibration rod 45.

[0016] When the present invention is in use, the clamp mechanism 3 assists in placing and clamping the automobile chassis, the two buffer mechanisms perform buffering and protection during vibration testing, and the auxiliary vibration mechanism 4 performs multiple shock-absorbing treatments, thereby achieving a protective effect on the equipment and extending the service life of the entire equipment.

[0017] See also Figure 1-Figure 6 In this scheme, buffer vibration blocks 42 are installed on all sides of the top of the vibration installation top plate 41, a mounting card 25 is installed on the top of the support platform 2 and on one side of the two first vibration rods 22, a vibration motor 26 is installed on the outside of the mounting card 25, and the top of the mounting card 25 and both sides of the vibration motor 26 are threadedly connected with third positioning bolts 27 extending to the inside of the support platform 2, and the mounting card 25 and the support platform 2 are reinforced and installed by the two third positioning bolts 27, and the vibration motor 26 is operated to drive the support platform 2 as a whole to perform a vibration treatment, which helps to improve the overall vibration test efficiency, and a buffer protection treatment is performed by four buffer vibration blocks 42 to extend the service life of the equipment, and the top of the support platform 2 and on the side away from the two first fixed plates 21 are threadedly connected with the second positioning bolts 24, and the top of the first fixed plate 21 and on all sides of the first vibration rod 22 are threadedly connected with the first positioning bolts 23 extending to the inside of the support platform 2.

[0018] The first fixing plate 21 and the support platform 2 are reinforced and installed by the first positioning bolts 23 , thereby improving the supporting effect of the support platform 2 on the vibration installation top plate 41 .

[0019] See also Figure 1-Figure 6 In this solution, the buffer mechanism includes a mounting frame 51, a symmetrically distributed first connecting plate 5 is installed between the mounting base plate 1 and the support platform 2, the top of the first connecting plate 5 is fixedly connected with equidistantly distributed buffer springs 56, the inside of the buffer springs 56 is installed with a damping shock absorber 57, the top of the buffer springs 56 is fixedly connected with a second connecting plate 53, the tops of the two second connecting plates 53 are installed with mounting frames 51, the tops of the mounting frames 51 are connected to the support platform 2, the bottom of the second connecting plates 53 are all threadedly connected with fourth positioning bolts 54 extending to the inside of the mounting frame 51, and the fourth positioning bolts 54 are connected to the bottom of the second connecting plates 53. 4. The mounting frame 51 and the second connecting plate 53 are reinforced and installed. The vibration generated during the vibration test is buffered and shock-absorbed by the buffer spring 56 and the damping shock absorber 57, which not only prolongs the service life of the equipment, but also improves the overall stability of the equipment during operation, meeting the needs of actual use. The top of the mounting frame 51 is equipped with equidistantly distributed mounting rods 55 extending to the inside of the support platform 2. The inside of the mounting frame 51 is fixedly connected with equidistantly distributed support plates 52. The inside of the first connecting plate 5 and the surrounding areas of the buffer spring 56 are threadedly connected with fifth positioning bolts 58 extending to the inside of the mounting base plate 1.

[0020] The first connecting plate 5 and the mounting base plate 1 are reinforced by four fifth positioning bolts 58, and the mounting base plate 1 and the support platform 2 are supported as a whole by installing equidistantly distributed support plates 52 inside the mounting frame 51, thereby improving the stability of the equipment during use.

[0021] See also Figure 1-Figure 5 In this scheme, two second fixed plates 46 are installed between the two first vibration rods 22 on the same side, wherein the bottom of one second fixed plate 46 is connected to the support platform 2, and the top of the other second fixed plate 46 is connected to the bottom of the vibration mounting top plate 41, and a tension spring 47 is installed between the two second fixed plates 46 on the same side. When the vibration mounting top plate 41 vibrates, an upward and downward force will be generated. The tension spring 47 is stretched and matched with a secondary buffer protection treatment, and the top of the first vibration rod 22 is slidably connected with a sliding rod, and the top of the sliding rod is connected to the bottom of the vibration mounting top plate 41. The outer side of the second vibration rod 45 is covered with a protrusion 48, and the protrusion 48 is eccentrically connected to the second vibration rod 45.

[0022] When the driving motor 44 is running, it drives the second vibration rod 45 to rotate, thereby driving the protrusion 48 eccentrically connected to the outside of the second vibration rod 45 to rotate. When the protrusion 48 continues to rotate upward, it will gradually drive the vibration mounting top plate 41 to move upward, and the second vibration rod 45 continues to rotate until the protrusion 48 is reset. The vibration test is carried out by coordinating the force generated by the up and down reciprocating motion of the vibration mounting top plate 41. During vibration, the sliding rod slides out of the first vibration rod 22 to perform three buffer protection treatments.

[0023] See also Figure 1-Figure 4 In this solution, the test box 32 is located on a side adjacent to the first clamp block 34 and the third clamp block 36, and a second clamp block 35 is installed. The structures of the second clamp block 35 and the third clamp block 36 are both L-shaped structures. The L-shaped structure is designed to better cooperate with the test box 32 to limit the position. The first clamp block 34 is internally slidably connected to a movable slider 38, and the movable slider 38 is located on the side of the first clamp block 34 away from the test box 32. The second clamp block 35 is internally slidably connected to a second limiting pin 37 that cooperates with the test box 32 to limit the position. The second limiting pin 37 is located at the second clamp block 35 away from the test box 32 On one side of the test box 32, the second limiting pin 37 and the second clamping block 35 are used to limit the one side of the test box 32 once, and the first clamping block 34 and the movable slider 38 are used to limit the one side of the test box 32 for the second time. The inside of the third clamping block 36 is slidably connected with the first limiting pin 361 used to cooperate with the test box 32 for limiting. The first limiting pin 361 is located on the side of the third clamping block 36 away from the test box 32. A rotating plate 362 is installed at the other end of the first limiting pin 361, and a handle 363 is installed at the bottom of the rotating plate 362. A card slot 33 is opened inside the test box 32.

[0024] One side of the test box 32 is limited three times by the third clamping block 36 and the first limiting pin 361, and the handle 363 is used to facilitate manual holding, thereby improving the stability of the test box 32 when in use. When in use, the chassis of the car can be placed on the surface of the test box 32, or the bottom of the chassis of the car can be placed in the placement slot 33 to cooperate with subsequent vibration tests.

[0025] See also Figure 1-Figure 5 In this solution, a control panel is installed on the outside of the support platform 2, and the vibration motor 26 and the drive motor 44 are both electrically connected to the control panel.

[0026] The control panel is used to control the operation of the vibration motor 26 and the drive motor 44, thereby achieving unified management of the power equipment. Working principle of the present invention: When in use, the external control panel is opened, and the mounting clamp 25 and the support platform 2 are reinforced and installed by two third positioning bolts 27 .

[0027] When in use, the chassis of the automobile can be placed on the surface of the test box 32, or the bottom of the chassis of the automobile can be placed in the placement slot 33 to cooperate with the subsequent vibration test.

[0028] The vibration motor 26 is operated to drive the support platform 2 to undergo a vibration treatment as a whole, thereby helping to improve the overall vibration test efficiency. The four buffer vibration blocks 42 are used to perform a buffer protection treatment, thereby extending the service life of the equipment.

[0029] The first fixing plate 21 and the support platform 2 are reinforced and installed by the first positioning bolts 23 , thereby improving the supporting effect of the support platform 2 on the vibration installation top plate 41 .

[0030] When the vibration mounting top plate 41 vibrates, an upward and downward force is generated. The tension spring 47 is stretched and matched with the secondary buffer protection treatment. When the driving motor 44 is running, it drives the second vibration rod 45 to rotate, thereby driving the protrusion 48 eccentrically connected to the outer side of the second vibration rod 45 to rotate. When the protrusion 48 continuously rotates upward, it gradually drives the vibration mounting top plate 41 to move upward. The second vibration rod 45 continues to rotate until the protrusion 48 is reset. Vibration test is carried out by matching the force generated by the up and down reciprocating motion of the vibration mounting top plate 41.

[0031] During vibration, the sliding rod slides out of the first vibration rod 22 to perform three buffer protection treatments.

[0032] The second limiting pin 37 and the second clamping block 35 limit one side of the test box 32 once, the first clamping block 34 and the movable slider 38 limit one side of the test box 32 twice, and the third clamping block 36 and the first limiting pin 361 limit one side of the test box 32 three times.

[0033] The handle 363 facilitates manual holding, thereby improving the stability of the test box 32 during use. The control panel is used to control the operation of the vibration motor 26 and the drive motor 44, thereby achieving unified management of power equipment.

[0034] The mounting frame 51 and the second connecting plate 53 are reinforced by the fourth positioning bolt 54, and the vibration generated during the vibration test is buffered and shock-absorbed by the buffer spring 56 and the damping shock absorber 57, which not only extends the service life of the equipment, but also improves the overall stability of the equipment during operation, meeting the needs of actual use.

[0035] The first connecting plate 5 and the mounting base plate 1 are reinforced by four fifth positioning bolts 58, and the mounting base plate 1 and the support platform 2 are supported as a whole by installing equidistantly distributed support plates 52 inside the mounting frame 51, thereby improving the stability of the equipment during use.

[0036] The clamp mechanism 3 assists in placing and clamping the chassis of the automobile, the two buffer mechanisms are used to provide buffer protection during vibration testing, and the auxiliary vibration mechanism 4 is used to perform multiple shock absorption processes, thereby achieving a protective effect on the equipment and extending the service life of the entire equipment.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vibration test fixture for an automobile chassis, comprising a support platform (2), characterized in that: Also includes: The top of the support platform (2) is provided with four first fixing plates (21), the tops of the four first fixing plates (21) are all fixedly connected to first vibration rods (22), the tops of the four first vibration rods (22) are all installed with vibration mounting top plates (41), the tops of the vibration mounting top plates (41) are installed with four buffer vibration blocks (42), the tops of the four buffer vibration blocks (42) are all installed with test platforms (31), and the top of the test platform (31) is installed with a fixture mechanism (3); The clamp mechanism (3) comprises a test box (32); a first clamp block (34) and a third clamp block (36) are provided on the top of the test platform (31); and the test box (32) is installed between the first clamp block (34) and the third clamp block (36); A mounting base plate (1) is installed below the support platform (2), and two buffer mechanisms are installed between the mounting base plate (1) and the support platform (2); An auxiliary vibration mechanism (4) is installed between the four first vibration rods (22), the auxiliary vibration mechanism (4) comprising a limit clamp (43), two limit clamps (43) are installed between the four first vibration rods (22), a second vibration rod (45) is rotatably connected between the two limit clamps (43), a drive motor (44) is installed on the outer side of one of the limit clamps (43), and an output end of the drive motor (44) is fixedly connected to the second vibration rod (45).

2. The vibration test fixture for automobile chassis according to claim 1, characterized in that: Buffer vibration blocks (42) are installed around the top of the vibration installation top plate (41), a mounting clamp (25) is installed on the top of the support platform (2) and on one side of the two first vibration rods (22), a vibration motor (26) is installed on the outside of the mounting clamp (25), and a third positioning bolt (27) extending into the interior of the support platform (2) is threadedly connected to the top of the mounting clamp (25) and on both sides of the vibration motor (26).

3. The vibration test fixture for automobile chassis according to claim 2, characterized in that: The buffer mechanism comprises a mounting frame (51), a symmetrically distributed first connecting plate (5) is installed between the mounting base plate (1) and the support platform (2), the top of the first connecting plate (5) is fixedly connected to equidistantly distributed buffer springs (56), the inside of each buffer spring (56) is installed with a damping shock absorber (57), the top of each buffer spring (56) is fixedly connected to a second connecting plate (53), the tops of the two second connecting plates (53) are both installed with a mounting frame (51), and the bottom of each second connecting plate (53) is threadedly connected to fourth positioning bolts (54) extending into the inside of the mounting frame (51).

4. The vibration test fixture for automobile chassis according to claim 3, characterized in that: The top of the mounting frame (51) is provided with mounting rods (55) which are evenly distributed and extend into the interior of the support platform (2); the interior of the mounting frame (51) is fixedly connected with support plates (52) which are evenly distributed; the interior of the first connecting plate (5) and the surrounding areas of the buffer spring (56) are threadedly connected with fifth positioning bolts (58) which extend into the interior of the mounting base plate (1).

5. The vibration test fixture for automobile chassis according to claim 1, characterized in that: Two second fixing plates (46) are installed between the two first vibration rods (22) on the same side, wherein the bottom of one of the second fixing plates (46) is connected to the support platform (2), and the top of the other second fixing plate (46) is connected to the bottom of the vibration installation top plate (41), and a tension spring (47) is installed between the two second fixing plates (46) on the same side.

6. The vibration test fixture for automobile chassis according to claim 2, characterized in that: The top of the support platform (2) and the side away from the two first fixing plates (21) are both threadedly connected with second positioning bolts (24), and the top of the first fixing plate (21) and the surrounding areas of the first vibration rod (22) are both threadedly connected with first positioning bolts (23) extending into the interior of the support platform (2).

7. The vibration test fixture for automobile chassis according to claim 1, characterized in that: The top of each of the first vibration rods (22) is slidably connected to a sliding rod, and the top of each of the sliding rods is connected to the bottom of a vibration mounting top plate (41). A protrusion (48) is sleeved on the outer side of the second vibration rod (45), and the protrusion (48) is eccentrically connected to the second vibration rod (45).

8. The vibration test fixture for automobile chassis according to claim 6, characterized in that: A second clamping block (35) is installed on one side of the test box (32) adjacent to the first clamping block (34) and the third clamping block (36); a movable slider (38) is slidably connected inside the first clamping block (34); and a second limit pin (37) for cooperating with the test box (32) to limit the position is slidably connected inside the second clamping block (35).

9. The vibration test fixture for automobile chassis according to claim 8, characterized in that: A first limiting latch (361) for limiting the position of the test box (32) is slidably connected inside the third clamping block (36); the first limiting latch (361) is located on a side of the third clamping block (36) away from the test box (32); a rotating plate (362) is mounted on the other end of the first limiting latch (361); a handle (363) is mounted on the bottom of the rotating plate (362); and a card slot (33) is provided inside the test box (32).

10. The vibration test fixture for automobile chassis according to claim 2, characterized in that: A control panel is installed outside the support platform (2), and the vibration motor (26) and the drive motor (44) are both electrically connected to the control panel.

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